Potamogeton epihydrus Raf.
Annotated by Robert R. Haynes, 1995.

Idaho: Bonner County: Chase Lake; 3 mi SE of Coolin, ID. Elev. 710 m.
T59N R4W S14 S1/2
Datum: NAD 27. Uncertainty: 800 meters. Coordinate Source: TRS2LL.
State land; Ca. 50 h lake; peatland complex on S end of the lake; Large, open peatland complex consists of open, floating Sphagnum mats immediately surrounding the lake dominated by Carex lasiocarpa and C. rostrata; scattered marshy areas dominated by Typha latifolia, often on Sphagnum-covered substrate; and shrub carrs adjacent to upland forests characterized by Alnus incana, Betula glandulosa, and Spiraea douglasii. Littoral regions of the lake characterized by rhizomatous stand of several aquatic macrophytes including Brasenia schreberi, Nymphaea odorata, and Nuphar polysepalum in water 1dm-2 m deep. Surrounding forest mixed w/ Populus tremuloides, Picea engelmanii, Pinus monticola, and Thuja plicata being prominent. Water chem.: pH 7.2, hardness (mg/L as CaCO3) 11.3, alkalinity (mg/L) 16, conductivity 70 mmhos. Abundance: few, scattered, growing in ca. 1.5 m of water in area dominated by B. schreberi. Some ovulate lvs. floating, other near surface submerged. Phenology: Fruits.

R. Bursik 1583, Sep 4, 1988
With F. Rabe, C. Clemens
ID, Accession: 99375, Barcode: ID006474